A novel charging dock terminal and charging dock

Abstract

This utility model belongs to the field of electric vehicle electrical connection technology, and particularly relates to a novel charging socket terminal and charging socket, including a copper conductor, an aluminum conductor, and a contact cage spring disposed at the end of the copper conductor away from the insertion slot and located in a through slot. The copper conductor has a through slot that runs through the copper conductor along the axial direction. One end of the copper conductor has an insertion slot that communicates with the through slot. One end of the aluminum conductor has an insertion protrusion that corresponds to and matches the insertion slot. When the insertion protrusion is inserted into the insertion slot, the aluminum conductor and the copper conductor are located on the same axis and are fixedly connected. This replaces the existing charging socket terminal structure, which is entirely made of copper metal, with a structure composed of copper metal and aluminum metal, reducing costs and weight. When the insertion protrusion is inserted into the insertion slot, the copper conductor can rotate relative to the aluminum conductor, and can be fixed by friction welding, so that the copper conductor and the aluminum conductor are perfectly combined and not easily pulled apart.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle electrical connection technology, and in particular relates to a novel charging socket terminal and charging socket. Background Technology

[0002] Automobiles are one of the most common means of transportation in modern life. They generally consist of four basic parts: engine, chassis, body, and electrical equipment, offering the advantage of convenient travel. In recent years, with continuous technological advancements, new energy vehicles have become increasingly popular. Common new energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and hydrogen engine vehicles. They require an external power source to replenish their electricity. During charging, a charging socket fixed to the vehicle body connects with a charging plug containing a power cord to form a charging circuit, completing the task of charging the electric vehicle.

[0003] Currently, the charging terminals for new energy vehicles are generally made entirely of copper, with nickel and silver plating on the outer surface. This results in higher costs and heavier weight for the charging terminals. Summary of the Invention

[0004] The purpose of this utility model is to provide a new type of charging terminal and charging base that reduces cost and weight.

[0005] This utility model is achieved by the following technical solution: A novel charging dock terminal includes: A copper conductor having a through groove extending axially through the copper conductor, and an insertion groove connected to the through groove at one end of the copper conductor. An aluminum conductor has an insertion protrusion at one end that corresponds to and matches an insertion slot. When the insertion protrusion is inserted into the insertion slot, the aluminum conductor and the copper conductor are located on the same axis. A contact cage spring, located at the end of the copper conductor away from the insertion slot and within the through slot, is used to connect with the mating terminal.

[0006] As described above, in a novel charging terminal, when the insertion protrusion is inserted into the insertion slot, the copper conductor can rotate relative to the aluminum conductor and is fixed by friction welding.

[0007] As described above, in a novel charging terminal, the aluminum conductor has a blind hole at one end near the insertion protrusion, and a drainage hole is provided on the aluminum conductor that extends radially through the inner wall of the blind hole.

[0008] As described above, in a novel charging terminal, the aluminum conductor has an mounting groove on the outer wall of the drain hole away from the blind hole, and a waterproof ring is fitted on the mounting groove.

[0009] As described above, the novel charging dock terminal also includes a cable, one end of which is provided with a first connecting portion, and the end of the aluminum conductor away from the insertion protrusion is provided with a second connecting portion, wherein the first connecting portion is connected to the second connecting portion.

[0010] As described above, in a novel charging dock terminal, the first connecting part is provided with a first flat connecting surface, and the second connecting part is provided with a second flat connecting surface. The first flat connecting surface and the second flat connecting surface are in contact, and the first connecting part and the second connecting part are connected by ultrasonic waves.

[0011] As described above, in a novel charging terminal, a cage spring mounting groove for mounting a contact cage spring is recessed on the inner wall of the through groove. A fastener can also be detachably installed in the cage spring mounting groove, and the fastener is used to press the contact cage spring.

[0012] As described above, in a novel charging terminal, the fastener is a C-shaped metal retainer ring, the outer wall of which is provided with annular ribs, and the inner wall of the cage spring mounting groove is provided with annular grooves that cooperate with the annular ribs.

[0013] As described above, in a novel charging terminal, a snap-fit ​​groove is provided on the outer wall of the copper conductor at the end away from the insertion slot, and a limiting cover is fitted onto the snap-fit ​​groove.

[0014] A charging stand includes a charging stand body, a terminal mounting channel inside the charging stand body, a novel charging stand terminal as described above being mounted in the terminal mounting channel, a fixing groove on the outer wall of the aluminum conductor, and a fixing protrusion inside the charging stand body that is mounted in the fixing groove.

[0015] Compared with the prior art, the present invention has the following advantages: This utility model provides a novel charging terminal, including a copper conductor, an aluminum conductor, and a contact cage spring located at the end of the copper conductor away from the insertion slot and within the through slot. The copper conductor has a through slot that passes through the copper conductor axially, and one end of the copper conductor has an insertion slot that communicates with the through slot. One end of the aluminum conductor has an insertion protrusion that corresponds to and matches the insertion slot. When the insertion protrusion is inserted into the insertion slot, the aluminum conductor and the copper conductor are located on the same axis and are fixedly connected. This replaces the existing charging terminal structure, which is entirely made of copper metal, with a structure composed of a combination of copper and aluminum metal, reducing costs and weight. Furthermore, when the insertion protrusion is inserted into the insertion slot, the copper conductor can rotate relative to the aluminum conductor, and can be fixed by friction welding, so that the copper conductor and the aluminum conductor are perfectly combined and not easily pulled apart. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the structure of the novel charging dock terminal in a specific embodiment of this utility model; Figure 2 This is a cross-sectional view of the novel charging dock terminal in a specific embodiment of the present utility model; Figure 3 This is an exploded structural diagram of the novel charging dock terminal in a specific embodiment of this utility model; Figure 4 This is an exploded structural diagram of the novel charging dock terminal in a specific embodiment of this utility model; Figure 5 This is a structural schematic diagram of the charging base in a specific embodiment of this utility model; Figure 6 This is a cross-sectional view of the charging base in a specific embodiment of the present invention. Detailed Implementation To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Specific embodiments, such as Figure 1-4The novel charging terminal shown includes: a copper conductor 1 with a through groove 2 extending axially through the copper conductor 1, one end of the copper conductor 1 having an insertion groove 3 communicating with the through groove 2; an aluminum conductor 4 with an insertion protrusion 5 corresponding to and matching the insertion groove 3 at one end, wherein when the insertion protrusion 5 is inserted into the insertion groove 3, the aluminum conductor 4 and the copper conductor 1 are located on the same axis; and a contact cage spring 6 located at the end of the copper conductor 1 away from the insertion groove 3 and within the through groove 2, for connection with a mating terminal. The device includes a copper conductor, an aluminum conductor, and a contact cage spring located at the end of the copper conductor away from the insertion slot and within a through slot. The copper conductor has a through slot that runs through it axially. One end of the copper conductor has an insertion slot that communicates with the through slot. One end of the aluminum conductor has an insertion protrusion that corresponds to and matches the insertion slot. When the insertion protrusion is inserted into the insertion slot, the aluminum conductor and the copper conductor are on the same axis and are fixedly connected. This replaces the existing charging socket terminal structure, which is entirely made of copper metal, with a structure composed of a combination of copper and aluminum metal, reducing costs and weight.

[0020] Specifically, when the insertion protrusion 5 is inserted into the insertion slot 3, the copper conductor 1 can rotate relative to the aluminum conductor 4 and is fixed by friction welding. This ensures a perfect bond between the copper and aluminum conductors, making them difficult to pull apart.

[0021] In addition, the aluminum conductor 4 has a blind hole 7 at one end near the insertion protrusion 5, and a drainage hole 8 is provided on the aluminum conductor 4, which extends radially through the inner wall of the blind hole 7. When the insertion protrusion 5 is inserted into the insertion slot 3, the blind hole 7 is connected to the through slot 2, so that water accumulated in the through slot 2 can be drained.

[0022] Furthermore, the aluminum conductor 4 has an installation ring groove 9 on the outer wall of the drain hole 8 on the side away from the blind hole 7, and a waterproof ring 10 is fitted on the installation ring groove 9. This provides a waterproof effect.

[0023] More specifically, the novel charging dock terminal also includes a cable 11, one end of which has a first connecting portion 12, and the end of the aluminum conductor 4 away from the insertion protrusion 5 has a second connecting portion 13. The first connecting portion 12 and the second connecting portion 13 are connected. Specifically, the first connecting portion 12 has a first flat connecting surface 14, and the second connecting portion 13 has a second flat connecting surface 15. The first flat connecting surface 14 and the second flat connecting surface 15 are in contact, and the first connecting portion 12 and the second connecting portion 13 are connected by ultrasonic welding. Ultrasonic welding is convenient to operate and provides better welding results, allowing the first connecting portion 12 and the second connecting portion 13 to be perfectly joined.

[0024] Furthermore, the inner wall of the through groove 2 is recessed with a cage spring mounting groove 16 for installing the contact cage spring 6. A fastener 17 can also be detachably installed in the cage spring mounting groove 16. The fastener 17 is used to press the contact cage spring 6, which facilitates disassembly and replacement.

[0025] Furthermore, the fastener 17 is a C-shaped metal retaining ring, with annular ribs 18 on its outer wall surface, and annular grooves 19 on the inner wall of the cage spring mounting groove 16 that mate with the annular ribs 18. This allows for easy assembly and disassembly.

[0026] Specifically, a snap-fit ​​groove 20 is provided on the outer wall of the copper conductor 1 at the end away from the insertion slot 3, and a limiting cover 21 is fitted on the snap-fit ​​groove 20.

[0027] This utility model also provides a charging dock, such as Figure 5-6 As shown, the device includes a charging base body 22, within which a terminal mounting channel 23 is provided. The terminal mounting channel 23 houses the novel charging base terminal as described above. A fixing groove 24 is provided on the outer wall of the aluminum conductor 4, and a fixing protrusion 25 is provided within the charging base body 22, which is engaged in the fixing groove 24. The novel charging base terminal is securely fixed by the cooperation of the fixing groove 24 and the fixing protrusion 25. Furthermore, the waterproof ring 10 engages with the inner wall of the terminal mounting channel 23 to achieve a waterproof effect.

[0028] The above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to different industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A novel charging dock terminal, characterized in that, include: A copper conductor (1) is provided with a through groove (2) that runs through the copper conductor (1) along the axial direction, and one end of the copper conductor (1) is provided with an insertion groove (3) that communicates with the through groove (2). An aluminum conductor (4) has an insertion protrusion (5) at one end that corresponds to and matches the insertion slot (3). When the insertion protrusion (5) is inserted into the insertion slot (3), the aluminum conductor (4) and the copper conductor (1) are located on the same axis. A contact cage spring (6) is located at one end of the copper conductor (1) away from the insertion slot (3) and within the through slot (2) for connection with the mating terminal.

2. The novel charging dock terminal according to claim 1, characterized in that, When the insertion protrusion (5) is inserted into the insertion slot (3), the copper conductor (1) can rotate relative to the aluminum conductor (4) and be fixed by friction welding.

3. The novel charging dock terminal according to claim 1, characterized in that, The aluminum conductor (4) has a blind hole (7) at one end near the insertion protrusion (5), and the aluminum conductor (4) has a drainage hole (8) that runs radially through the inner wall of the blind hole (7).

4. A novel charging dock terminal according to claim 3, characterized in that, The aluminum conductor (4) has an installation ring groove (9) on the outer wall of the drain hole (8) away from the blind hole (7), and a waterproof ring (10) is fitted on the installation ring groove (9).

5. A novel charging dock terminal according to claim 1, characterized in that, It also includes a cable (11), one end of which is provided with a first connecting part (12), and the aluminum conductor (4) is provided with a second connecting part (13) at the end away from the insertion protrusion (5), and the first connecting part (12) and the second connecting part (13) are connected.

6. A novel charging dock terminal according to claim 5, characterized in that, The first connecting part (12) is provided with a first flat connecting surface (14), and the second connecting part (13) is provided with a second flat connecting surface (15). The first flat connecting surface (14) and the second flat connecting surface (15) are in contact and are connected by ultrasonic waves.

7. A novel charging dock terminal according to claim 1, characterized in that, The inner wall of the through groove (2) is recessed with a cage spring mounting groove (16) for installing the contact cage spring (6). A fastener (17) can also be detachably installed in the cage spring mounting groove (16). The fastener (17) is used to press the contact cage spring (6).

8. A novel charging dock terminal according to claim 7, characterized in that, The fastener (17) is a C-type metal retainer ring. The outer wall of the C-type metal retainer ring is provided with annular ribs (18), and the inner wall of the cage spring mounting groove (16) is provided with annular grooves (19) that cooperate with the annular ribs (18).

9. A novel charging dock terminal according to claim 6, characterized in that, The copper conductor (1) has a snap-fit ​​groove (20) on the outer wall of the end away from the insertion slot (3), and a limiting cover (21) is fitted on the snap-fit ​​groove (20).

10. A charging stand, characterized in that, The device includes a charging base body (22), which has a terminal mounting channel (23) inside. The terminal mounting channel (23) is fitted with a novel charging base terminal as described in any one of claims 1-9. The aluminum conductor (4) has a fixing groove (24) on its outer wall, and the charging base body (22) has a fixing protrusion (25) fitted in the fixing groove (24).

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